<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <script src="../js/vue.js"></script>
  <style>
    * {
      margin-top: 20px;
    }

    .demo1 {
      height: 50px;
      background-color: skyblue;
    }

    .box1 {
      padding: 5px;
      background-color: skyblue;
    }

    .box2 {
      padding: 5px;
      background-color: orange;
    }

    .list {
      width: 200px;
      height: 200px;
      background-color: peru;
      overflow: auto;
    }
    li{
      height: 100px;
    }
  </style>
</head>

<body>
  <!-- 
    Vue中的事件修饰符：
      1.prevent：阻止默认事件(常用) ；
      2.stop：阻止事件冒泡(常用)；
      3.once：事件只触发一次(常用)
      4.capture：使用事件的捕获模式；
      5.self：只有event.target是当前操作的元素是才触发事件；
      6.passive：事件的默认行为立即执行，无需等待事件回调执行完毕；
   -->
  <div id="root">
    <h2>Welcome {{name}}}</h2>
    <a href="https://www.baidu.com" @click.prevent="aClick">click me to alert</a>

    <div class="demo1" @click="aClick">
      <button @click.stop="aClick">点我提示信息</button>
    </div>

    <button @click.once="aClick">事件只触发一次</button>

    <div class="box1" @click.capture="showMsg(1)">
      div1
      <div class="box2" @click="showMsg(2)">
        div2
      </div>
    </div>

    <hr>
    <div class="demo1" @click.self="aClick">
      <button @click="aClick">点我提示信息</button>
    </div>

    <hr>

    <ul @scroll.passvie="demo" class="list">
      <li>1</li>
      <li>2</li>
      <li>3</li>
      <li>4</li>
    </ul>

  </div>
  <script>
    Vue.config.productionTip = false
    new Vue({
      el: '#root',
      data: {
        name: 'ccc'
      },
      methods: {
        aClick(e) {
          // alert("Hello", this.name)
          console.log(e.target)
        },
        showMsg(msg) {
          console.log(msg)
        },
        demo() {
          console.log('@')
        }
      }
    })
  </script>
</body>

</html>